538908793 has 2 divisors, whose sum is σ = 538908794. Its totient is φ = 538908792.

The previous prime is 538908781. The next prime is 538908803. The reversal of 538908793 is 397809835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 537683344 + 1225449 = 23188^2 + 1107^2 .

It is a cyclic number.

It is not a de Polignac number, because 538908793 - 2¹⁷ = 538777721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 538908793.

It is not a weakly prime, because it can be changed into another prime (538908593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269454396 + 269454397.

It is an arithmetic number, because the mean of its divisors is an integer number (269454397).

Almost surely, 2^538908793 is an apocalyptic number.

It is an amenable number.

538908793 is a deficient number, since it is larger than the sum of its proper divisors (1).

538908793 is an equidigital number, since it uses as much as digits as its factorization.

538908793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The square root of 538908793 is about 23214.4091675838. The cubic root of 538908793 is about 813.7763981454.

The spelling of 538908793 in words is "five hundred thirty-eight million, nine hundred eight thousand, seven hundred ninety-three".